I was trying to search for items in my library indexed to the catholic liturgical calendar and I get no results:

or as I ran it today - note it is build by the system not manually and it does not work ...

Try searching instead for: {Milestone <CatholicCalendar Ord Time 23 Sun C>}
See the section of the help file on the Milestone syntax for an explanation of why this in needed in this situation: https://ref.ly/logosres/logos4help;hw=Advanced_Searching;off=20897
Yes, this works ... as run today

However, it does not address the issue that the system builds a bad search string. If Dave gets his corrected, Damian and I should at least get acknowledged
Yes, I do understand why this slipped through the first time ... but not why when I referenced it in Dave's thread it was still ignored.